Typically the armature windings are in the stator of a generator, which does not rotate. Typically the field windings are on the rotor, which rotates.
The armature is mounted between two poles of a permanent magnet or electromagne.
from Faraday's law of electromagnetic induction :when a current carrying conductor cuts the magnetic field an E.M.F (electro motive force) is produced and it sets up in such a direction so as to...
It orbits the sun but does not rotate like Earth. One side is always hot and one is aways cold.
The ocean and the earth do rotate. At the same speed, once every 24 hrs.
'Armature' means coil in which voltage is induced by motion through a magnetic field
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